This fix has been developed inhouse and has been submitted to the community
but not accepted yet.
Details of submission can be found at
https://github.com/att/ast/pull/1
--- INIT.2011-02-08.old/src/cmd/ksh93/include/jobs.h 2015-03-03 00:21:58.242706370 -0800
+++ INIT.2011-02-08/src/cmd/ksh93/include/jobs.h 2015-03-03 00:40:48.894575330 -0800
@@ -203,6 +203,7 @@
extern int job_close(Shell_t*);
extern int job_list(struct process*,int);
extern int job_terminate(struct process*,int);
+ extern int job_hup(struct process *, int);
extern int job_switch(struct process*,int);
extern void job_fork(pid_t);
extern int job_reap(int);
--- INIT.2011-02-08.old/src/cmd/ksh93/sh/fault.c 2015-03-03 00:21:58.214056350 -0800
+++ INIT.2011-02-08/src/cmd/ksh93/sh/fault.c 2015-03-03 00:40:44.367029380 -0800
@@ -635,7 +635,7 @@
#endif
#ifdef JOBS
if((sh_isoption(SH_INTERACTIVE) && shp->login_sh) || (!sh_isoption(SH_INTERACTIVE) && (sig==SIGHUP)))
- job_walk(sfstderr,job_terminate,SIGHUP,NIL(char**));
+ job_walk(sfstderr, job_hup, SIGHUP, NIL(char**));
#endif /* JOBS */
job_close(shp);
if(nv_search("VMTRACE", shp->var_tree,0))
--- INIT.2011-02-08.old/src/cmd/ksh93/sh/jobs.c 2015-03-03 00:22:16.741450850 -0800
+++ INIT.2011-02-08/src/cmd/ksh93/sh/jobs.c 2015-03-03 00:44:48.323265420 -0800
@@ -1211,6 +1211,61 @@
}
/*
+ * Similar to job_kill, but dedicated to SIGHUP handling when session is
+ * being disconnected.
+ */
+int
+job_hup(struct process *pw, int sig)
+{
+ struct process *px;
+ pid_t pid;
+ int r;
+
+ if (pw->p_pgrp == 0 || (pw->p_flag & P_DISOWN))
+ return (0);
+
+#if SHOPT_COSHELL
+ if(pw->p_cojob) {
+ job_lock();
+ r = cokill(pw->p_cojob->coshell,pw->p_cojob,sig);
+ job_unlock();
+ return (r);
+ }
+#endif /* SHOPT_COSHELL */
+
+ job_lock();
+ if (pw->p_pgrp != 0) {
+ int palive = 0;
+
+ for (px = pw; px != NULL; px = px->p_nxtproc) {
+ if ((px->p_flag & P_DONE) == 0) {
+ palive = 1;
+ break;
+ }
+ }
+ /*
+ * If all the processes have been dead, there is no guarantee
+ * that the p_pgrp is still the valid process group that we
+ * made, ie pid may have been recycled and same p_pgrp may
+ * have been assigned to unrelated processes.
+ */
+ if (palive) {
+ if (killpg(pw->p_pgrp, SIGHUP) >= 0)
+ job_unstop(pw);
+ }
+ }
+ for (; pw != NULL && pw->p_pgrp == 0; pw = pw->p_nxtproc) {
+ if (pw->p_flag & P_DONE)
+ continue;
+ if (kill(pw->p_pid, SIGHUP) >= 0)
+ (void) kill(pw->p_pid, SIGCONT);
+ pw = pw->p_nxtproc;
+ }
+ job_unlock();
+ return(0);
+}
+
+/*
* Get process structure from first letters of jobname
*
*/